---
product_id: 46978388
title: "Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003"
brand: "z-wave.me"
price: "R11652"
currency: ZAR
in_stock: true
reviews_count: 5
url: https://www.desertcart.co.za/products/46978388-trane-xl850-controller-tcont850ac52ua-z-wave-certified-zc08-14090003
store_origin: ZA
region: South Africa
---

# Supports U.S./Canada/Mexico frequency region Z-Wave Certified for seamless smart home integration Battery powered for uninterrupted control Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003

**Brand:** z-wave.me
**Price:** R11652
**Availability:** ✅ In Stock

## Summary

> 🔥 Take command of your comfort with Trane XL850 – the smart thermostat controller that’s always a step ahead!

## Quick Answers

- **What is this?** Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003 by z-wave.me
- **How much does it cost?** R11652 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/46978388-trane-xl850-controller-tcont850ac52ua-z-wave-certified-zc08-14090003)

## Best For

- z-wave.me enthusiasts

## Why This Product

- Trusted z-wave.me brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Home Command Center:** Control your entire Z-Wave network remotely via Nexia Home Intelligence
- • **Effortless Firmware Updates:** Stay future-ready with over-the-air firmware update capabilities
- • **Compact & Lightweight Design:** Sleek 1-pound controller fits perfectly in any HVAC setup without bulk
- • **Robust Multi-Command Support:** Handles everything from thermostat setpoints to door locks with advanced command classes
- • **Universal Regional Compatibility:** Optimized for North American frequency standards ensuring flawless connectivity

## Overview

The Trane XL850 Controller (TCONT850AC52UA) is a Z-Wave certified, battery-powered smart thermostat controller designed for North American markets. It enables remote management of your Z-Wave network through Nexia Home Intelligence, supporting a wide range of command classes including thermostat control, door locks, and sensor monitoring. Compact and lightweight, it ensures seamless integration into HVAC systems with easy firmware updates to keep your smart home future-proof.

## Description

Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003

## Features

- Z-Wave Certification ID: ZC08-14090003
- Frequency Region: U.S./Canada/Mexico, Z-Wave Library Version: 4.55.00
- Device Categories: Thermostats,Controllers
- Supported Command Classes: Association,Battery,Binary Sensor,Binary Switch,Clock,Configuration,Door Lock,Firmware Update MD V2,Thermostat Setpoint V2,User Code,Wake Up,Sensor Multilevel V2,Switch
- Controlled Command Classes: Association,Battery,Binary Sensor,Binary Switch,Clock,Configuration,Door Lock,Firmware Update,Multilevel Sensor,Multilevel

## Technical Specifications

| Specification | Value |
|---------------|-------|
| UPC | 642872866126 |
| Manufacturer | Trane |
| Part Number | TCONT850AC52UA |
| Item Weight | 1 pounds |
| Package Dimensions | 10 x 5.91 x 3.11 inches |
| Item model number | TCONT850AC52UA |
| Power Source | Battery Powered |
| Item Package Quantity | 1 |

## Product Details

- **Color:** silver
- **Brand:** Z-Wave.Me
- **Item Weight:** 16 ounces
- **Display Type:** LCD
- **Operating Temperature:** 68 Degrees Fahrenheit

## Images

![Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003 - Image 1](https://m.media-amazon.com/images/I/41iCOCn88wL.jpg)
![Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003 - Image 2](https://m.media-amazon.com/images/I/41DioyvUy9L.jpg)
![Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003 - Image 3](https://m.media-amazon.com/images/I/41rYOf5mWJL.jpg)
![Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003 - Image 4](https://m.media-amazon.com/images/I/41bq7EiDP1L.jpg)
![Trane XL850, Controller, TCONT850AC52UA, Z-Wave Certified, ZC08-14090003 - Image 5](https://m.media-amazon.com/images/I/51w63wqnspL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Replacement for the 950
*by S***S on October 29, 2024*

I have the Trane XL 20i high efficiency system which I am very happy with. My old thermostat was the 950 and I began to have problems with it staying connected to the internet. I decided on this model since it has essentially the same functionality and was cheaper, just a bit smaller. I have been super pleased so far, it has worked flawlessly and has not disconnected one time. When we bought our home, it had this system already and truth be old, I could not afford to replace it with today’s equivalent but I love the Trane and it is very efficient. Good job on the 850!

### ⭐ these are worthless engineering samples - SCAM!
*by B***G on March 3, 2018*

The thermostat I got is an engineering sample that has crippled firmware that is unable to update or do any home automation or connect to the internet the to update software. It's totally useless. If you get one with firmware version 1.0.03E it's garbage! current version is 5.2, the listing states "version 4.55", which is acceptable but the unit I got was not even close. Furthermore, when I finally got Trane customer service on the phone, they told me the serial number is not one that is in their database, was not intended for sale, and is ineligible for any support, and a "Licensed Trane Professional" wouldn't work on it.I do have to say that the vendor upon hearing from me months later after purchasing the unit (it took me that long to figure out what the problem was since Trane doesn't exactly make it easy to get any kind of support without paying a "Licensed Trane Professional" for a house call....don't get me started on gratuitous occupational licensing...) refunded the purchase price very quickly.Just in case you're looking at installing one of these for your home automation - here's some information you might find useful...not for this particular listing but for the XL850 in general as well as the XL950 and XL1050 as they will have the same limitation. Although it IS Z wave compatible it CANNOT be added as a device to a Z wave hub. It IS a very limited Z wave hub that forces you to sign up for Nexia, a cloud-based automation provider. The thermostat monitoring is free, but if you want to use it for other things, that'll cost you.There are some rudimentary Smartthings scripts that can basically log into your Nexia account and control some basic functionality, it is not 100% compatible or easy to set up.I decided to rip out my Comfortlink II controller and put in "normal" thermostat wiring so I can install a real z wave thermostat that doesn't force you change your home automation system, script your own work-arounds, and deal with proprietary closed-system support models.

### ⭐⭐⭐⭐⭐ Know need for the expensive 1050 model
*by M***D on June 20, 2022*

I had an original XL 950 which started acting up. It is no longer available, but XL1050 is now the latest.I found that the features of the XL850 was all that I needed (remote access to my thermostat) and was quite a bit more affordable

## Frequently Bought Together

- Trane XL850, TCONT850AC52UA, by Trane, Cert ID: ZC08-14090003
- PGSONIC CR2450 3V Lithium Battery (5pcs)
- Indprod Fit 2.48" Outer Diameter Flange Water Pipe Cover Decoration Black Pipe Cover Radiator PP Plastic 63mm Escutcheon Collar for Wall Pipe Tube Decoration 1Pc

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**Shop now:** [https://www.desertcart.co.za/products/46978388-trane-xl850-controller-tcont850ac52ua-z-wave-certified-zc08-14090003](https://www.desertcart.co.za/products/46978388-trane-xl850-controller-tcont850ac52ua-z-wave-certified-zc08-14090003)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-07*